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8 1/2 inch IADC617 single cone bits for HDD reamers

Bit Size

8 1/2"(215.9MM)

Model

617

Application

Suitable for hole openers used for HDD engineering

Features

  1. Enhanced wear resistant gauge protection,increase the working life.
  2. High temperature resistant rubber sealed bearing.
  3. Shirt-tail protected by tungsten carbide
  4. 14mm conical insert,higher wear resustace drill fast
  5. Applicable rock hardness: ≥100Mpa


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